Practically, the only thing I like or liked about the recent BO's were the soundtracks. I have NFSU 1 and 2, and Juiced on Xbox. Juiced is pretty good, except for having to buy cars, but I got 8 for free from my brother, courtesy to Xbox Live, :happyjump. AND, they've already been "tricked out".
But getting back on topic, I just don't like Burnout anymore. IMO, they rushed the previous ones after Takedown, which made me loose interest.